{"product_id":"moldex-6703-sparkplugs-ecostation-dispenser-nrr-33-500-pairs","title":"Moldex 6703 SparkPlugs EcoStation Uncorded Earplug Dispenser — NRR 33dB, 500 Pairs","description":"\u003c!--\n================================================================================\nFAQ SCHEMA — push to custom.faq_json metafield\n================================================================================\n[\n  { \"@type\": \"Question\", \"name\": \"What is the NRR of Moldex SparkPlugs earplugs?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Moldex SparkPlugs earplugs (6604 uncorded, 6654 corded, 6615 metal detectable) have an NRR of 33 dB. Applying OSHA's 50% derating method: effective attenuation = (33 - 7) x 0.5 = 13 dB. In a 100 dBA environment, estimated exposure at the ear is approximately 87 dBA when correctly inserted.\" } },\n  { \"@type\": \"Question\", \"name\": \"What makes Moldex SparkPlugs different from other Moldex foam earplugs?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"SparkPlugs are distinguished by their bright multicolored foam (neon green, blue, pink, yellow stripes), a tapered roll-down design, and the availability of a metal-detectable compound version (6615 corded). The vivid colors aid compliance monitoring — supervisors can verify at a distance that workers are wearing protection. The metal-detectable variant (6615) is specifically engineered for food processing and pharmaceutical facilities where earplug loss into product is a contamination risk.\" } },\n  { \"@type\": \"Question\", \"name\": \"What is the SparkPlugs 6615 metal detectable earplug?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"The Moldex SparkPlugs 6615 is a corded NRR 33 foam earplug manufactured with a metal-detectable compound embedded in the foam. If the earplug body separates and enters a food or pharmaceutical production line, metal detection equipment will detect and reject the contaminated product. The 6615 is the standard selection for hearing conservation programs in metal-detection-monitored food processing and pharmaceutical facilities.\" } },\n  { \"@type\": \"Question\", \"name\": \"Are Moldex SparkPlugs latex-free?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes. Moldex SparkPlugs are latex-free and PVC-free. They are made from polyurethane foam without chloroprene or diisocyanates. This material profile makes them appropriate for latex-sensitive workers and for most food-grade and pharmaceutical PPE programs.\" } },\n  { \"@type\": \"Question\", \"name\": \"What is the difference between SparkPlugs 6604, 6654, and 6615?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"6604 is uncorded (loose pairs, 200 per bag). 6654 is corded (pairs connected by cord that hangs around the neck, 100 per bag). 6615 is metal-detectable and corded (pairs connected by cord, with metal-detectable compound in foam — specifically for food and pharmaceutical lines with metal detection). All three use the same NRR 33 SparkPlugs foam body.\" } },\n  { \"@type\": \"Question\", \"name\": \"How do I insert Moldex SparkPlugs correctly?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Roll the SparkPlug between clean fingers to compress the foam to a small, wrinkle-free cylinder. Reach over or around the head with the opposite hand to pull the outer ear up and back — this straightens the ear canal. Insert the compressed earplug with a slow rotation while holding in place for 20-30 seconds until the foam expands fully and forms a complete seal. The outer end should be flush with or slightly inside the ear canal opening, not protruding. Incorrect insertion — not compressing enough or not holding in place — is the most common cause of poor attenuation in practice.\" } },\n  { \"@type\": \"Question\", \"name\": \"What noise levels do SparkPlugs NRR 33 protect against?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"NRR 33 SparkPlugs provide effective protection (OSHA 50% derating: 13 dB) for environments up to approximately 103 dBA 8-hour TWA. For environments above 103 dBA, dual hearing protection (earplugs + earmuffs) is recommended. OSHA 29 CFR 1910.95 requires hearing protection when TWA exceeds 85 dBA.\" } },\n  { \"@type\": \"Question\", \"name\": \"Can SparkPlugs earplugs be used in food processing facilities?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Standard SparkPlugs (6604\/6654) with their bright multicolor foam aid visual detection if lost in product, but are not metal-detectable. For facilities with X-ray or metal detection lines where regulatory or food safety programs require detectability, specify the SparkPlugs 6615 metal detectable corded earplug. Both versions are PVC-free and latex-free.\" } },\n  { \"@type\": \"Question\", \"name\": \"What is a PlugStation earplug dispenser?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Moldex PlugStation is a wall-mounted earplug dispenser system. Dispensers hold 250 or 500 pairs and mount near area entrances so workers can take a fresh pair when entering a noise zone. Available in uncorded (6644, 6645, 6605) and corded (6880) formats, and a metal-detectable corded version (6881). The TouchFree EcoStation (6833) dispenses pairs without touching the unit body.\" } },\n  { \"@type\": \"Question\", \"name\": \"How do SparkPlugs compare to Pura-Fit?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Both are NRR 33 Moldex foam earplugs with latex-free, PVC-free formulations. The key differences: Pura-Fit (6800) uses a no-roll-down tapered insertion — faster in dirty environments. SparkPlugs (6604) uses a traditional roll-down compression insertion. SparkPlugs has the metal-detectable compound option (6615) — Pura-Fit does not. SparkPlugs have a more vivid multicolor appearance. For most general industrial programs, either is appropriate; choose SparkPlugs 6615 when metal detection is required.\" } },\n  { \"@type\": \"Question\", \"name\": \"Do I need to fit test earplugs?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"OSHA does not require individual earplug fit testing. However, OSHA 1910.95(i)(4) requires training on selection, fitting, use, and care of hearing protectors — training on correct insertion technique is critical because actual attenuation in practice depends almost entirely on proper fit. NIOSH recommends field attenuation estimation (FAET) to verify real-world protection levels.\" } },\n  { \"@type\": \"Question\", \"name\": \"Where can I buy Moldex SparkPlugs in bulk?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"WC Safety stocks the full SparkPlugs lineup: 6604 uncorded (200 pairs), 6654 corded (100 pairs), 6615 metal detectable corded, PlugStation dispensers (6644, 6645, 6880, 6881), EcoStation (6703), and TouchFree EcoStation (6833). Browse the complete Moldex Earplugs collection at WC Safety.\" } }\n]\n================================================================================\n\nSEO PAGE TITLE (max 70 chars):\nMoldex SparkPlugs 6604 Earplugs NRR 33 | Metal Detectable Option, Corded \u0026 Uncorded\n\nMETA DESCRIPTION (max 160 chars):\nMoldex SparkPlugs NRR 33 foam earplugs — vibrant multicolor, latex-free, PVC-free. Metal detectable 6615, corded 6654, uncorded 6604. Dispensers in stock at WC Safety.\n\n================================================================================\n--\u003e\n\n\u003caside style=\"border: 2px solid #ff9800; padding: 20px 24px; background: #2a2520; margin: 24px 0; border-radius: 6px; color: #f5e6d3;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap;\"\u003e\n    \u003cspan style=\"background: #ff9800; color: #1a1a1a; font-weight: bold; padding: 4px 12px; border-radius: 4px; font-size: 0.95em;\"\u003eEDITORIAL REVIEW: 4.5\/5\u003c\/span\u003e\n    \u003cspan style=\"color: #ffb74d; font-size: 0.9em;\"\u003eIndependently reviewed by WC Safety\u003c\/span\u003e\n  \u003c\/div\u003e\n  \u003cp style=\"margin: 0 0 14px 0; color: #f5e6d3; font-style: italic; line-height: 1.5;\"\u003e\"SparkPlugs deliver NRR 33 in a high-visibility multicolor foam that makes compliance monitoring easy — and the metal-detectable 6615 is the go-to earplug for food processing and pharmaceutical programs where loss-into-product is a real hazard. One of the most versatile earplug families in the Moldex lineup.\"\u003c\/p\u003e\n  \u003cp style=\"margin: 0;\"\u003e\n    Read the full review →\n     ·\n    Best Moldex Earplugs Guide →\n  \u003c\/p\u003e\n\u003c\/aside\u003e\n\n\u003ch2\u003eMoldex SparkPlugs — NRR 33 dB Foam Earplug, Metal Detectable Option Available\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eMoldex SparkPlugs\u003c\/strong\u003e is a \u003cstrong\u003eNRR 33 dB disposable foam earplug\u003c\/strong\u003e distinguished by its vivid multicolor foam body and the availability of a \u003cstrong\u003emetal-detectable compound version\u003c\/strong\u003e — the only earplug in the Moldex lineup engineered specifically for facilities where earplug loss into product is a regulatory or food safety concern. Available as the \u003ca href=\"\/products\/moldex-6604-sparkplugs-uncorded-earplugs-nrr-33-200-pairs\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e6604 uncorded\u003c\/a\u003e, \u003ca href=\"\/products\/moldex-6654-sparkplugs-corded-earplugs-nrr-33-100-pairs\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e6654 corded\u003c\/a\u003e, and \u003ca href=\"\/products\/moldex-6615-sparkplugs-metal-detectable-corded-earplugs-nrr-33\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e6615 metal detectable corded\u003c\/a\u003e, plus EcoStation, PlugStation, and TouchFree dispenser formats for high-volume programs. For a no-roll-down foam alternative with the same NRR, see the \u003ca href=\"\/products\/moldex-6800-pura-fit-uncorded-earplugs-nrr-33-200-pairs\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003eMoldex Pura-Fit (NRR 33)\u003c\/a\u003e. For SparkPlugs in a PlugStation metal detectable dispenser, see the \u003ca href=\"\/products\/moldex-6881-sparkplugs-metal-detectable-plugstation-nrr-33-150-pairs\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e6881 PlugStation metal detectable dispenser\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border-left:4px solid #ff9800;border-radius:4px;padding:16px 20px;margin:24px 0;\"\u003e\n\u003cstrong style=\"color:#ff9800;\"\u003eQuick Facts — Moldex SparkPlugs\u003c\/strong\u003e\n\u003cul style=\"margin-top:8px;padding-left:18px;line-height:1.9;color:#e0e0e0;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eNRR:\u003c\/strong\u003e 33 dB (ANSI S3.19-1974)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Disposable roll-down foam earplug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsertion Method:\u003c\/strong\u003e Roll-down compression — compress, insert, hold 20–30 sec for expansion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polyurethane foam — latex-free, PVC-free, chloroprene-free\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Vivid multicolor (neon green, blue, pink, yellow) — high visibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal Detectable Option:\u003c\/strong\u003e 6615 corded — metal-detectable compound embedded in foam for food\/pharma lines\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/product-reviews\/moldex-6604-sparkplugs-review\" style=\"color:#4fc3f7;\"\u003e\u003cstrong\u003eAvailable Variants:\u003c\/strong\u003e 6604 uncorded, 6654 corded, 6615 metal detectable corded; EcoStation, PlugStation, TouchFree dispenser formats\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication Range:\u003c\/strong\u003e Up to ~103 dBA TWA (OSHA 50% derating: effective protection = 13 dB)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cul style=\"line-height:2;padding-left:18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal-detectable compound — engineered for food and pharmaceutical lines:\u003c\/strong\u003e The SparkPlugs 6615 is the standout option in this family — a NRR 33 corded foam earplug with metal-detectable compound embedded throughout the foam body. If an earplug or foam fragment enters a production line, standard metal detection and X-ray inspection equipment will trigger a product reject — satisfying the earplug detectability requirements of HACCP, BRC, SQF, and customer-mandated food safety programs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-visibility multicolor foam — compliance monitoring at a glance:\u003c\/strong\u003e The SparkPlugs' neon multicolor pattern is visible from a distance in plant environments — safety managers and supervisors can verify worker compliance without approaching each workstation. In high-throughput manufacturing where visual compliance checks happen multiple times per shift, the SparkPlugs' color contrast over skin tones and work clothing is a genuine operational advantage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNRR 33 — maximum single-device attenuation:\u003c\/strong\u003e At NRR 33, SparkPlugs deliver the highest protection rating available from a foam earplug — sufficient for environments up to approximately 103 dBA TWA when properly worn (effective attenuation of 13 dB after OSHA 50% derating). This satisfies OSHA 1910.95 requirements across the vast majority of general industry noise environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLatex-free and PVC-free formulation:\u003c\/strong\u003e SparkPlugs foam contains no latex, PVC, chloroprene, or other common sensitizers — making them appropriate for latex-allergic workers and for industries with strict PPE material restrictions on products that contact workers' bodies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull dispenser ecosystem:\u003c\/strong\u003e SparkPlugs are available in the complete Moldex dispenser format lineup — EcoStation (6703), PlugStation uncorded (6644, 6645), PlugStation corded (6880), PlugStation metal detectable (6881), and TouchFree EcoStation (6833) — enabling implementation at any facility scale and hygiene requirement level\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications — When to Use Moldex SparkPlugs\u003c\/h2\u003e\n\n\u003cul style=\"line-height:1.9;padding-left:18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eFood processing and packaging (metal detectable — specify 6615):\u003c\/strong\u003e Meat processing, bottling, bakery, dairy, and packaged goods production lines frequently mandate metal-detectable PPE under HACCP or retailer-specific food safety standards. The SparkPlugs 6615 satisfies these requirements at NRR 33 — the highest attenuation available in a metal-detectable earplug format. For dispenser programs on metal-detection-monitored lines, the \u003ca href=\"\/products\/moldex-6881-sparkplugs-metal-detectable-plugstation-nrr-33-150-pairs\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e6881 PlugStation metal detectable dispenser\u003c\/a\u003e provides bulk distribution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePharmaceutical manufacturing:\u003c\/strong\u003e Tablet compression, packaging, and process areas with noise levels 90–105 dBA and strict contamination control requirements — the SparkPlugs' clean material formulation and metal-detectable option (6615) address both hearing protection and loss-into-product concerns in cGMP-regulated environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral manufacturing and assembly:\u003c\/strong\u003e Press rooms, stamping lines, CNC machining, and assembly environments in the 90–103 dBA range — SparkPlugs NRR 33 provides maximum attenuation, and the high-visibility multicolor body aids the compliance monitoring required under OSHA hearing conservation programs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction and infrastructure:\u003c\/strong\u003e Jackhammering, concrete cutting, heavy equipment, and demolition — the corded 6654 keeps both plugs accessible when workers move between noisy and quiet areas, and the bright coloration remains visible even in PPE-dense environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-volume industrial programs with dispenser infrastructure:\u003c\/strong\u003e The SparkPlugs PlugStation (6644\/6645 uncorded, 6880 corded, 6881 metal detectable) and EcoStation (6703) systems support facility-wide dispenser programs — mount at area entrances to eliminate barriers to hearing protection compliance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSparkPlugs — All Variants\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;color:#e0e0e0;margin:16px 0;font-size:0.93em;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:left;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:center;\"\u003eNRR\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:left;\"\u003eFormat\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:center;\"\u003eQty\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:left;\"\u003eKey Feature\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background:#1e2a1e;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:700;\"\u003e6604 \u003cem style=\"font-weight:400;color:#9e9e9e;\"\u003e(this product)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e33\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eUncorded\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e200 pairs\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eStandard general-use earplug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:700;\"\u003e\u003ca href=\"\/products\/moldex-6654-sparkplugs-corded-earplugs-nrr-33-100-pairs\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e6654\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e33\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eCorded\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e100 pairs\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eHang around neck between tasks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#222;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:700;\"\u003e\u003ca href=\"\/products\/moldex-6615-sparkplugs-metal-detectable-corded-earplugs-nrr-33\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e6615\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e33\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eMetal Detectable Corded\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003eVaries\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;color:#ffb74d;\"\u003e\u003cstrong\u003eFood\/pharma lines — metal detection compliant\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:700;\"\u003e\u003ca href=\"\/products\/moldex-6684-sparkplugs-uncorded-earplug-jar-nrr-33-50-pairs\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e6684 Jar\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e33\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eJar (uncorded)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e50 pairs\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eCountertop \/ small program use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#222;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:700;\"\u003e\u003ca href=\"\/products\/moldex-6703-sparkplugs-ecostation-dispenser-nrr-33-500-pairs\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e6703 EcoStation\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e33\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eEcoStation dispenser\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e500 pairs\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eArea-entry wall dispenser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:700;\"\u003e\u003ca href=\"\/products\/moldex-6833-sparkplugs-touchfree-ecostation-dispenser-nrr-33\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e6833 TouchFree\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e33\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eTouch-free dispenser\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003eVaries\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eNo-contact dispensing — food, cleanroom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#222;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:700;\"\u003e\u003ca href=\"\/products\/moldex-6644-sparkplugs-plugstation-dispenser-nrr-33-250-pairs\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e6644 PlugStation 250\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e33\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003ePlugStation (uncorded)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e250 pairs\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eCompact dispenser for smaller programs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:700;\"\u003e\u003ca href=\"\/products\/moldex-6881-sparkplugs-metal-detectable-plugstation-nrr-33-150-pairs\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e6881 PlugStation Metal Det.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e33\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003ePlugStation (metal detectable corded)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e150 pairs\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;color:#ffb74d;\"\u003e\u003cstrong\u003eFood\/pharma dispenser — metal detection compliant\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eSparkPlugs vs. Competing NRR 33 Foam Earplugs\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;color:#e0e0e0;margin:16px 0;font-size:0.93em;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:left;\"\u003eEarplug\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:center;\"\u003eNRR\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:center;\"\u003eMetal Detectable\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:left;\"\u003eInsertion\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:left;\"\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background:#1e2a1e;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:700;\"\u003eMoldex SparkPlugs 6604\/6615 \u003cem style=\"font-weight:400;color:#9e9e9e;\"\u003e(this product)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e33\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;color:#81c784;\"\u003e✔ (6615\/6881)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eRoll-down\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eFood\/pharma with metal detection; max NRR; high-vis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:700;\"\u003e\u003ca href=\"\/products\/moldex-6800-pura-fit-uncorded-earplugs-nrr-33-200-pairs\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003eMoldex Pura-Fit 6800\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e33\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;color:#e57373;\"\u003e✘\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eNo-roll-down\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eDirty environments; no foam compression needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#222;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:700;\"\u003e\u003ca href=\"\/products\/moldex-6870-meteors-uncorded-earplugs-nrr-33-200-pairs\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003eMoldex Meteors 6870\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e33\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;color:#e57373;\"\u003e✘\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eBell-shape grip tab\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eEasy grip; small size (NRR 28) available for smaller ear canals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:700;\"\u003e\u003ca href=\"\/products\/moldex-6435-alphas-corded-reusable-earplugs-nrr-27db\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003eMoldex Alphas 6435\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e27\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;color:#81c784;\"\u003e✔ (6436)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eReusable flanged\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eReusable; metal-detectable option; lower NRR than SparkPlugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#222;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:700;\"\u003eHoward Leight MAX\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e33\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;color:#e57373;\"\u003e✘\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eRoll-down bell\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eNRR 33 alternative; no metal-detectable option\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOSHA Compliance \u0026amp; Hearing Conservation\u003c\/h2\u003e\n\n\u003cp\u003eMoldex SparkPlugs are rated under \u003cstrong\u003eANSI S3.19-1974\u003c\/strong\u003e at NRR 33. Under \u003cstrong\u003eOSHA 29 CFR 1910.95\u003c\/strong\u003e, SparkPlugs are appropriate hearing protection for workers with TWA noise exposures from 85 dBA to approximately 103 dBA (OSHA 50% derating applied). For food processing facilities, the 6615 metal-detectable variant satisfies the earplug detectability requirements of HACCP, BRC, and SQF food safety programs in addition to OSHA 1910.95 hearing protection requirements.\u003c\/p\u003e\n\n\u003cul style=\"line-height:1.9;padding-left:18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrect insertion technique is critical:\u003c\/strong\u003e OSHA 1910.95(i)(4) requires training on hearing protector use — roll-down foam earplugs achieve labeled NRR only when fully compressed and held in the ear canal until foam fully expands. Workers who do not compress fully or do not hold the plug in place may receive significantly less than 13 dB effective attenuation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal-detectable food safety compliance:\u003c\/strong\u003e 6615\/6881 contain metal-detectable compound engineered to trigger standard metal detection equipment — consult your facility's food safety program to confirm detection threshold requirements are met\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnnual audiometric testing:\u003c\/strong\u003e Required under OSHA 1910.95(g) for all workers in a hearing conservation program — hearing protection selection and training should be documented as part of the written program required under 1910.95(c)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eWhat is the NRR of Moldex SparkPlugs?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eSparkPlugs (6604\/6654\/6615) have NRR 33 dB. Effective attenuation under OSHA's 50% derating: (33 – 7) × 0.5 = 13 dB. In a 100 dBA environment, estimated ear exposure = 87 dBA with proper insertion.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eWhat makes SparkPlugs different from other Moldex foam earplugs?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eThe key differentiators are the vivid multicolor foam for easy compliance monitoring and the metal-detectable compound option (6615 corded, 6881 PlugStation dispenser) for food processing and pharmaceutical facilities. The SparkPlugs are also one of the few NRR 33 earplugs with a dispenser program that includes a metal-detectable format.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eWhat is the SparkPlugs 6615 metal detectable earplug?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eThe 6615 is a corded NRR 33 SparkPlug with metal-detectable compound embedded throughout the foam body. If the earplug or a foam fragment enters a production line, it will trigger metal detection or X-ray inspection equipment — satisfying food safety program requirements under HACCP, BRC, SQF, and customer specifications.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eAre Moldex SparkPlugs latex-free?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eYes — latex-free, PVC-free, and chloroprene-free. Appropriate for latex-sensitive workers and for facilities with material restriction requirements on PPE that contacts workers' bodies.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eWhat is the difference between 6604, 6654, and 6615?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003e6604 is uncorded (200 pairs per bag). 6654 is corded (100 pairs per bag). 6615 is metal-detectable and corded — specifically for food\/pharma lines with metal detection. All three use identical NRR 33 SparkPlugs foam.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eHow do I insert SparkPlugs correctly?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eCompress the foam to a thin cylinder between clean fingers. Reach over or around the head with the opposite hand to pull the outer ear up and back. Insert the compressed earplug with a slow twisting motion and hold for 20–30 seconds while the foam expands. The outer end should be flush with the ear canal opening — not protruding significantly. Incomplete compression or not holding the plug during expansion are the most common fit errors.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eCan SparkPlugs be used in food processing?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eStandard 6604\/6654 SparkPlugs are bright-colored but not metal-detectable. For facilities with metal detection or X-ray inspection on product lines, specify the 6615 metal detectable corded earplug or the 6881 PlugStation metal detectable dispenser. Both are PVC-free and latex-free.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eWhat dispenser options are available for SparkPlugs?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eFull dispenser ecosystem: EcoStation 6703 (500 pairs wall-mount), TouchFree EcoStation 6833 (no-contact dispensing), PlugStation 6644 (250 uncorded), PlugStation 6645 (500 uncorded), PlugStation 6880 (150 corded), PlugStation 6881 (150 metal detectable corded), and jar format 6684 (50 uncorded).\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eHow do SparkPlugs compare to Pura-Fit?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eBoth are NRR 33, latex-free, PVC-free Moldex foam earplugs. Pura-Fit (6800) uses no-roll-down insertion — better for dirty\/gloved-hand environments. SparkPlugs (6604) requires roll-down compression. SparkPlugs has the metal-detectable option (6615); Pura-Fit does not. For most programs, either is appropriate — choose SparkPlugs 6615 when metal detection is required.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eDo I need to fit test earplugs?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eOSHA does not require individual earplug fit testing. However, OSHA 1910.95(i)(4) requires training on selection, fitting, use, and care. Proper insertion technique is critical — actual attenuation in practice is determined almost entirely by correct fit, not by labeled NRR alone.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eWhere can I buy Moldex SparkPlugs in bulk?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eWC Safety stocks 6604 uncorded (200 pairs), 6654 corded (100 pairs), 6615 metal detectable corded, jar 6684 (50 pairs), all EcoStation and PlugStation dispenser formats. Browse the \u003ca href=\"\/collections\/moldex-earplugs\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003eMoldex Earplugs collection at WC Safety →\u003c\/a\u003e\u003c\/p\u003e\n","brand":"Moldex","offers":[{"title":"Default Title","offer_id":44052680409176,"sku":"6703","price":111.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/1900\/0920\/files\/71ONjBX0_3L._SL1500.jpg?v=1777626139","url":"https:\/\/wcsafety.com\/products\/moldex-6703-sparkplugs-ecostation-dispenser-nrr-33-500-pairs","provider":"WC Safety","version":"1.0","type":"link"}